Recently, an instrument valued at $1,000,000 (yes, that's one million US dollars!) was stolen. Well, actually, I'm not sure you could say the instrument was stolen. The car that it was in was stolen. The instrument just happened to be a sweet bonus for the car thieves.
Think it's reasonable to leave a $1,000,000 cello in the car while you go in to a store, restaurant, or a friend's house? Hmmmmm. If you had $1,000,000 in cash- $20s, $50s, and $100s, would you leave it in the car? Of course not! So, why would anyone leave an instrument valued at that amount?